Here we have a reference to the tribal organization of the Jews, which played a great part in their forty years' march through the Arabian deserts (Num. i. and ii.) and their subsequent settlement in the land of Canaan (Josh. xxii. and xiv.). The twelve tribes were derived from the sons of Jacob, whose name was changed to Israel (soldier of God) after he had wrestled, says Jewish tradition, with God (Genesis xxxii. 28). Israel had twelve sons (Gen. xxxv. 22-26), including Levi and Joseph. The descendants of these twelve sons were the "Children of Israel." Levi's family got the priesthood and the care of the Tabernacle; they were exempted from military duties for which the census was taken (Nu. i. 47-53), and therefore from the distribution of Land in Canaan (Josh. xiv. 3); they were distributed among all the Tribes, and were really a privileged caste and not numbered among the Tribes; Moses and Aaron belonged to the house of Levi. On the other hand Joseph, on account of the high position to which he rose in Egypt as the Pharoah's minister, was the progenitor of two tribes, one in the name of each of his two sons Ephraim and Manasseh. Thus there were twelve Tribes in all, as Levi was cut out and Joseph represented two tribes. Their having fixed stations and watering places in camp and fixed territorial areas later in the Promised Land prevented confusion and mutual jealousies and is pointed to as an evidence of the Providence of God acting through His prophet Moses. Cf. also vii. 160.